hey, great mod and even better logo!
We've just discovered you can't place these in space, I get why because how do you have "underground" on a space platform, but I sorta imagine it as though they poke out of the underside of the station lol.
I'd love to make a PR and re-enable se_allow_in_space or make a separate "compatibility" mod.

It seems weird that SE provides giant item warehouses but doesn't provide comparable fluid tanks. This mod adds those comparable tanks!

Hi ch4rl1e,
Thanks for your interest in my mod. Unfortunately I haven't played Factorio for about 10 months now and I'm quite busy with Baldur's Gate 3 and Starfield at the moment.
In that time pretty much everything I learned about making this mod has faded from memory. I have a vague impression that there was a good reason for setting the allow in space flag to false, but I can't remember why.
If you want to take a crack at this yourself, you should be able to unpack and re-pack the mod's zip file and alter three occurrences of se_allow_in_space to True in UndergroundTanks\prototypes\entities.lua preferably with Notepad++, but plain old Notepad will probably do.
When you stick the updated file back into the zip archive, that should be it, but if the mod won't load after, then:
Compress the whole UndergroundTanks folder into a new zip file using 7-Zip, change the compression method to zip from lzma and put in the parameters field "tc=off" which from what I recall is necessary for Factorio to open zip files nicely. Rename the new zip to match and then overwrite the original.
I hope this helps.

Hey Paul, no worries and I absolutely understand it fading from memory haha, hope you're enjoying, I need to get myself Starfield!

I spend the better part of a day producing a patch mod to set the allow in space flag: https://mods.factorio.com/mod/UndergroundTanksSEPatch
That way people can chose for themselves to enable it :)

Would be ideal to just make it a togglable setting in the UI but I'm now very aware that that is easier said than done haha